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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/163479
Título

Evaluation of uncertainties for CIELAB color coordinates

AutorWübbeler, Gerd; Campos Acosta, Joaquín ; Elster, Clemens
Palabras claveCIELAB color coordinates
Monte Carlo method
Measurement uncertainty
Fecha de publicación9-ene-2017
EditorJohn Wiley & Sons
CitaciónColor Research and Application 42: 564-570 (2017)
ResumenCIELAB color coordinates are characteristics of visible object¿s spectra widely used in color science, and a reliable evaluation of the uncertainty associated with measured color coordinates is desirable. The calculation of CIELAB color coordinates requires the application of a nonlinear transformation. We consider two ways to calculate the uncertainty of CIELAB color coordinates that originates from the uncertainty of the observed spectrum. The ¿rst approach is based on a linearization of the nonlinear transformation and a propagation of variances and covariances. The second approach is a Monte Carlo procedure that completely accounts for the nonlinearity of the trans- formation. While the approach based on linearization results in analytical formulas, the adequacy of linearization ought to be checked and the proposed Monte Carlo method can serve as a reference method for this purpose. We illustrate such proceed- ing in a large range of scenarios and explore those cases for which the method based on linearization may safely be applied.
Descripción7 pags., 1 figs., 1 tab.
Versión del editorhttps://doi.org/10.1002/col.22109
URIhttp://hdl.handle.net/10261/163479
Identificadoresdoi: 10.1002/col.22109
issn: 0361-2317
Aparece en las colecciones: (CFMAC-IO) Artículos
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